Pneumatic cushion-spring for wheeled vehicles.



J. W. SUTTON.

PNEUMATIC onsmon SPRING FOR WHEELED vmnm APPLICATION FILED AUG.26, 1911.

1,Q48,371 Patente fl Dec. 24, 1912.

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JOSEPH WILLIAM SUTTON, 0F BRISBANE. QUEENSLAND. AUSTRALIA, ASSIGNOR TO MARY SUTTON, 0F BRISBANE, AUSTRALIA.

PNEUZMATIC CUSHION-SPRING FOR WHEELlTlD VEHICLES.

Specification of Letters Patent.

Pat cnted Dec. 24, 1 912.

Application tiled August 526, 1911. Serial No. 646208.

To all 107mm it may concern:

Be it known that I, Josi-zrn \Vtnnrnl b'ti'u 'rox, a subject of the King ol. the United Kingdom of (treat Britain and lreland and oi? the ltritishdoluinions beyond the seas, re-

siding at llris'baue, in the State of Queenssprings and with pneumatic tires, although it is within the scope of the invention to use the same in connection with such springs and tires or with either of them.

Referring to the drawing, Figure 1 is a transverse section of one form of the invention and Fi Qis a view Tart] in lan and 1 said but: having a clrcumterential shoulder,

partly in section on the line X---X of Fig. 1.

cover titted in the cylinder C or formed in tegrrally therewith, which rests upon the top oi the bag ll. being separated therefrom by the protecting cover. The cylinder C is fast to the plate I) which bolted tofthe vehicle body or tllltlt1 as the case may l e and this cylinder slides vertically over the outside of the cup l7; over which it tits snugly.

At K are shown bolts cooperating with the plate L to fasten the device to the axle.

in using" the inventiom the load compresses the cushion cover l and the pncumatic cushion is thus thrust into a position which more or less approaches whatis indicated by the dotted lines.

that I claim is-- 1. A removable pneumatic cushioning member for vehicles comprising in combination an inner hollow distensible bag, a

The axle is shown at A and above it is shown a metal cup B with interned edges 1 at the top, Within which is a foundation packing J of papier inaeh or other suitable material.

M is a ball, bag or lining 0t" rubber or suitable distensible material, which on com pression assumes the form shown in dotted lines in the drawings, and G is the space Within the ball or ba The foundation packing J fits the normal conformation of the bag when distended.

A flexible protecting cover of vulcanized rubber or othersuitablo material is shown at, I, the same having a circumferential retaining cover, \VhlCll fits under the inturned edgeson the top of the cup B. This pro teetingcover prevents the entrance of all moisture Which would tend to deteriorate the delicate distensiblc hollow bag M.

C is a metatcyhnder with a (hinged top, having guide colts F sliding in a supporting plate H on the axle and D is a dished foundation packing; shaped to fit the normal conforn'ialion of soul hag beneath the same, a flexible protecting cover for the top of and an outer metal cup int'lusillg' said bag. 'ftfltlltltlt'lnlt and cover and having an inturned upper edge fitting over the shoulder i on said. cover, substantially as described.

2. A cushioning means for vehicles comprisinga support H, a metal cylinder, C and a suitable guide for said cylinder: in ombination with a metal cup within said eylin der having an inturued upper edge, an in her distensible hollow bag, a foundation packing within said cup tilting the under side of said bag, and a flexible protecting cover fitting over said bag and having a shoulder fittingunder the inturned edge of said cup, substantially as tlescribed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH WVILLI'AM SUTTON.

Vitnesses:

I). GARLAN Annmt, OLIVE R. Amctn. 

